The production technology of glued laminated timber became known only about half a century ago, therefore information about its durability can be only purely theoretical. Based on the fact that the construction of wood glued under a press exceeds the strength of concrete and brick, this promising period should be calculated for more than a decade. Natural wood is used in the production of the material, so painting a house from glued laminated timber is not only an aesthetic technique. It is also a means to protect the walls from the troubles that natural raw materials can undergo under the influence of time and weathering.
By painting the laminated timber, you can be sure that you have protected the surface of the wood and made it beautiful.
If after erecting a building you do not plan to carry out insulation and wall covering works, you should think about measures to preserve the beauty and integrity of the building. Multistage and technologically complex processing of glued laminated timber, in addition to high performance characteristics, also gives it aesthetic appeal (Fig. 1).
Figure 1. In addition to high performance, the processing of glued laminated timber gives it an aesthetic appearance.
Its smooth surface has such a beautiful woody texture that there is no desire to take measures for its additional processing. But natural material tends to succumb to the effects of the environment. Hygroscopic wood absorbs moisture, loses the strength of fibers under the influence of sunlight and can become a favorable breeding ground for microorganisms.
Do not think that painting a house from a bar will significantly impair its appearance and reduce the natural properties of natural wood. Modern paint products contain an assortment of special tools designed for the treatment of wooden surfaces. These coloring compositions are of high quality, durability and complete safety for indoor applications and for exterior decoration.
The painting of the house can be made with translucent compositions that do not hide, but emphasize the beauty of the glued timber.
Dyes are made on an aqueous or oil basis, according to a technology that allows them to avoid rapid fading and show resistance to climatic influences.
For interior painting of walls, opaque or translucent acrylic or alkyd paints are used.
Upon completion of construction work, applying varnish or paint on the inside surfaces of a laminated timber house has two goals. The first is decorative, with the task of emphasizing the natural beauty of wood. The second is to protect the tree from possible damage to the domestic character. There are the following types of coatings that are recommended for painting laminated veneer lumber indoors:
The sooner the external walls of the building are processed, the longer the period of protecting the wood from adverse factors will be. Measures to protect the facade from damage and preserve its beauty require diligence and patience, but only they will ensure the durability of the finish and the preservation of wood material (Fig. 2). For preliminary preparation and subsequent painting of the walls you will need:
Figure 2. Protecting the facade from damage and preserving its beauty require endurance and patience, but only they will ensure the durability of the finish.
Even if the suppliers of material guaranteed the implementation of a complex of antiseptic measures when buying, it is better not to save and duplicate the impregnation of wood with special compounds. Then there will be complete confidence in the protection of the house from a bar from fungus, mold and other troubles.The whole cycle of outdoor work can be divided into several stages:
The ends are the weakest point in the log house. They are subjected to the greatest load from the ingress of water and sunlight, and therefore are subject to cracking and damage. Their processing should be given the most serious attention. Final polishing of the ends is carried out with a nozzle with a very fine grain to remove as much lint as possible. Then they should be processed for sealing with acrylic sealant.
Grinding of the surface must be done at low speed, otherwise rough marks may form on the beam. Pre-remove all residues of tar on the walls of the house of laminated veneer lumber. This procedure allows to eliminate minor defects and contributes to the subsequent setting of the paint and varnish composition with the tree. Additionally, all dirt on the house is cleaned, which may prevent the paint from lying on the wall surface in an even layer.
The main purpose of priming is to reinforce the wood preservative effect produced by the antiseptic and to improve the adhesion of the surface to the paint. Some primers contain preparations that can minimize the effect of solar ultraviolet radiation on wood fibers. Especially important is the use of such a soil before covering walls with translucent dyes.
The facade is painted in several stages. To carry out this process, it is desirable to wait for warm, dry and windless weather. The composition is applied in 3 layers with an interval sufficient for complete drying of the previously applied funds. 2-3 months after the work, the facade should be inspected for cracks and, if necessary, the damaged areas should be treated with sealant.
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